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Introduction to Linux - A Hands on Guide

This guide was created as an overview of the Linux Operating System, geared toward new users as an exploration tour and getting started guide, with exercises at the end of each chapter.
For more advanced trainees it can be a desktop reference, and a collection of the base knowledge needed to proceed with system and network administration. This book contains many real life examples derived from the author's experience as a Linux system and network administrator, trainer and consultant. They hope these examples will help you to get a better understanding of the Linux system and that you feel encouraged to try out things on your own.

I have installed Slackware x86_64 in my computer and everything was fine until I realized that the flashplugin didn't work well. When I want to play a video on youtube the browser crashes.
I installed the flashplugin from Slackbuilds. In the Slacbuild file I just check the version and set ARCH to x86_64, What can I do?

Flash should be configured to use ALSA by default (without the additional flash library), so if you're not getting sound it probably means that something is hogging your sound device. Anything configured to use OSS instead of ALSA will steal your sound device directly and you will not be able to get any sound from another application, so that is one thing to look into. I am much more versed in artsd than phonon, but since you're using -current I'm assuming you're using KDE4. I only use KDE4 on one user account and that is pretty rarely, but sound has 'just worked' with Flash there. I would check any settings you have for any software sound mixers or other sound daemons, as well as any applications you may have running (music players, for example, even if they're paused) and check to make sure that you are using ALSA as the output device and not OSS or any other software device. You should also make sure you user is a member of the audio group if you haven't already.

If you really do want to use the additional library with pulse audio, you would *need* pulse to build properly for it to work, since it uses pulse as an engine. You would of course then need to start the pulseaudio daemon to grab the sound from Flash. If it is not building properly on -current it is likely because of the switch to bash 4, so you may need to adjust the SlackBuild script to stop exiting from non-crucial errors. Search these forums for that. If it is still not working with pulse you may wish to take the easy way out and configure pulse to act as the backend for all audio...but I have not tested this on KDE4 (just 3.5 and other WMs) so I don't know what conflicts it would have with phonon. Just create a .asoundrc file with the following:

Code:

pcm.!default {
type pulse
}
ctl.!default {
type pulse
}

And restart X (or possibly your PC). Make sure pulse is running or you will get no sound at all.

That's a lot of information, some of it simplified beyond recognition, but it should get you started anyway.

The only thing i couldn't find out is, why the mixer are not visible in kmix in my old account?
In the new account "test" i can see these in HDA NVidia mixer and can set up these under channels settings.